Chevy Ram Horns have good flow and look good. They run up to 2 1/2" on Corvettes. Nice fit and A/C mounting. They don't leak! Craigslist, Ebay or Stovebolt. The diff between those and headers would only be about 2-5 HP on a stock 350. There is a pair on my Craigslist (Phoenix) right now for a mid 70's Corvette, $40. Search: ram horn to see what they look like. There is no way of knowing for sure if a pair of manifolds fit with a certain engine swap until you try them. Each swap has a little different engine location. Most V8 exhaust manifolds, headers or otherwise, in TF trucks are very close to the steering box.


Right is right, even if everyone is against it, and wrong is wrong, even if everyone is for it. - William Penn